body {
    font-family: Arial, sans-serif;
    background-color: #e1f5fe; /* 浅蓝色，可根据需要调整 */
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
 }


.login-container {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 300px;
}

.login-container h1 {
    text-align: center;
    color: #333;
}

.alert {
    background-color: #f8d7da;
    color: #721c24;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}

.input-group {
    margin-bottom: 15px;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    color: #333;
}

.input-group input {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #007BFF;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #0056b3;
}

a {
    display: block;
    text-align: center;
    margin-top: 15px;
    color: #007BFF;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}
